Spraying structure of desulfurizing tower

Abstract

A spraying structure of a desulfurizing tower comprises a water inlet main pipe and a water inlet branch pipe, and a rotary spraying assembly is arranged on the water inlet branch pipe. The rotary spraying assembly comprises a rotary supporting frame and a spraying pipe which are coaxially arranged, the rotary supporting frame is rotationally arranged outside the water inlet branch pipe in a sleeving mode and communicates with the water inlet branch pipe, the spraying pipe communicates with the rotary supporting frame through a water guide pipe, the spraying pipe is an annular pipe, and the water guide pipe is a horizontal pipe arranged along the radius of the spraying pipe; first nozzles with downward outlets are arranged at the bottoms of the spraying pipe and the water guide pipe; an odd number of second nozzles are evenly distributed on the periphery of the spraying pipe, and an acute angle is formed between an outlet and the spraying pipe in the radial direction. Through the arrangement of the rotary spraying assembly, rotary spraying of the spraying structure is achieved, the situation that a desulfurizing agent is sprayed unevenly due to blockage of evenly-distributed nozzles is reduced, and the desulfurizing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization towers, in particular to a desulfurization tower spray structure. Background Art

[0002] The desulfurization tower is generally composed of an absorption tower, a circulation pump, a spray system, a discharge pipe and other parts. The spray system is an important part of the desulfurization tower. Its main function is to spray the absorbent into the industrial waste gas to react with the SO2 in the waste gas. Generally, a nozzle arrangement is adopted to ensure that the absorbent can evenly cover the industrial waste gas, such as a desulfurization tower spray structure disclosed in patent document CN220716272U. However, when the existing spray structure is used, when the nozzle at a certain position is blocked, uneven spraying is prone to occur, resulting in poor flue gas desulfurization effect. Utility Model Content

[0003] In view of the problems and shortcomings in the prior art, the utility model provides a desulfurization tower spray structure.

[0004] The technical solution of this utility model is as follows:

[0005] A desulfurization tower spray structure comprises a water inlet main pipe and a water inlet branch pipe, wherein a rotary spray assembly is arranged on the water inlet branch pipe;

[0006] The rotary spray assembly includes a coaxially arranged rotary support frame and a spray pipe. The rotary support frame is rotatably sleeved outside the water inlet branch pipe and is connected to the water inlet branch pipe. The spray pipe is connected to the rotary support frame through a water guide pipe. The spray pipe is an annular pipe, and the water guide pipe is a horizontal pipe arranged along the radius of the spray pipe. The spray pipe and the water guide pipe are provided with a plurality of first nozzles with outlets facing downward at the bottom. An odd number of second nozzles are evenly distributed on the periphery of the spray pipe, and the outlets are arranged at an acute angle to the radial direction of the circular ring where the spray pipe is located.

[0007] During operation, the desulfurizer entering from the water inlet main pipe first flows into the water inlet branch pipe, flows into the water guide pipe from the water inlet branch pipe through the connecting hole, and then enters the spray pipe from the water guide pipe. The desulfurizer entering the water guide pipe and the spray pipe is sprayed out through the first nozzle and the second nozzle respectively. Since the outlet direction of the second nozzle forms an acute angle with the radial direction of the spray pipe, and an odd number of nozzles are arranged along the circumference of the spray pipe, under the action of the impact force of the desulfurization liquid spraying, the tangential component force drives the spray pipe and the rotating support frame to rotate around the water inlet branch pipe, so that the first nozzle can rotate to spray the desulfurizer, thereby preventing the situation of uniform lack of desulfurizer due to clogging of a single nozzle, reducing the problem of uneven spraying of the spray structure, and improving the desulfurization effect.

[0008] In a specific embodiment, four communication holes are evenly distributed along the circumferential direction on the side wall of the water inlet branch pipe for communicating with the water guide pipe. And two water guide pipes are symmetrically arranged with the rotating support frame as the center.

[0009] The angle between the outlet of the second nozzle and the radius of the circle where the spray pipe is located is 20°-60°. The purpose is to provide a rotational driving force to the rotating support frame through the tangential component of the desulfurizer spraying, so that the spray pipe can rotate around the water inlet branch pipe.

[0010] In order to improve the uniformity of spraying and the stability of the overall structure, the first nozzles are evenly spaced along the circumference of the spray pipe. The first nozzles are spaced horizontally along the water guide pipe.

[0011] Specifically, in order to prevent water leakage from the bottom, a plug is provided at the bottom of the water inlet branch pipe. In order to reduce the residue of the desulfurizer in the pipeline, the rotating support frame is arranged at the lower part of the water inlet branch pipe.

[0012] Preferably, a plurality of the rotary spraying assemblies are arranged at intervals along the water inlet main pipe in order to improve the spraying efficiency.

[0013] The beneficial effects of the utility model are:

[0014] A rotary spray assembly is provided, including a coaxially arranged rotary support frame and a spray pipe. The rotary support frame is rotatably sleeved outside the water inlet branch pipe and is connected to the water inlet branch pipe. The spray pipe is connected to the rotary support frame through a water guide pipe. A first nozzle is provided at the bottom of the spray pipe and the water guide pipe, and an odd number of second nozzles are evenly distributed on the periphery of the spray pipe. The outlet of the second nozzle is provided at an acute angle to the tangent of the spray pipe. The desulfurizer entering from the water inlet main pipe first flows into the water inlet branch pipe, flows into the water guide pipe from the water inlet branch pipe through the connecting hole, and then enters the spray pipe from the water guide pipe. The desulfurizer entering the water guide pipe and the spray pipe is sprayed out through the first nozzle and the second nozzle respectively. Since the outlet direction of the second nozzle forms an acute angle with the radial direction of the spray pipe, and an odd number of nozzles are arranged along the circumference of the spray pipe, under the action of the impact force of the desulfurization liquid spraying, the tangential component force drives the spray pipe and the rotating support frame to rotate around the water inlet branch pipe, so that the first nozzle can rotate to spray the desulfurizer, thereby preventing the situation of uniform lack of desulfurizer due to clogging of a single nozzle, reducing the problem of uneven spraying of the spray structure, and improving the desulfurization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment;

[0016] Figure 2 for Figure 1 A front sectional view of the rotary spray assembly;

[0017] Figure 3 for Figure 1 A top sectional view of the rotary spray assembly;

[0018] 1. Water inlet main pipe; 2. Water inlet branch pipe; 21. Connecting hole; 3. Rotating support frame; 4. Spray pipe; 5. Water guide pipe; 6. First nozzle; 7. Second nozzle; 8. Blockage. DETAILED DESCRIPTION

[0019] The following will further describe the technical means adopted to achieve the predetermined inventive purpose of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0020] See also Figure 1 As shown, a desulfurization tower spray structure includes a water inlet main pipe 1 and a water inlet branch pipe 2, and a rotary spray component is provided on the water inlet branch pipe 2;

[0021] See also Figure 2 and Figure 3 As shown, the rotary spray assembly includes a coaxially arranged rotary support frame 3 and a spray pipe 4, the rotary support frame 3 is rotatably sleeved outside the water inlet branch pipe 2 and is connected to the water inlet branch pipe 2, the spray pipe 4 is connected to the rotary support frame 3 through a water guide pipe 5, the spray pipe 4 is an annular pipe, and the water guide pipe 5 is a horizontal pipe arranged along the radius of the spray pipe 4; a plurality of first nozzles 6 with downward outlets are arranged at the bottom of the spray pipe 4 and the water guide pipe 5; an odd number of second nozzles 7 are evenly distributed on the periphery of the spray pipe 4, and the outlets are arranged at an acute angle to the radial direction of the circular ring where the spray pipe 4 is located.

[0022] In a specific implementation, the rotating bracket can be rotatably connected to the water inlet branch pipe 2 through a bearing with a waterproof sealing cover, or other parts with similar functions, and a seal is provided at the outer end of the bearing to prevent the desulfurizer from leaking from the connection between the rotating bracket and the water inlet pipe. The first nozzle 6 and the second nozzle 7 are atomizing nozzles.

[0023] During operation, the desulfurizer enters the water inlet branch pipe 2 from the water inlet main pipe 1, then flows into the water guide pipe 5 from the water inlet branch pipe 2 through the connecting hole, and then enters the spray pipe 4 from the water guide pipe 5. The desulfurizer entering the water guide pipe 5 and the spray pipe 4 is sprayed out through the first nozzle 6 and the second nozzle 7 respectively. Among them, since the outlet direction of the second nozzle 7 forms an acute angle with the radial direction of the spray pipe 4, and an odd number of the second nozzles 7 are arranged along the circumference of the spray pipe 4, under the impact force of the desulfurization liquid spraying, the tangential component drives the spray pipe 4 and the rotating support frame 3 to rotate around the water inlet branch pipe 2, so that the first nozzle 6 can rotate to spray the desulfurizer, preventing the situation of uniform lack of desulfurizer caused by the blockage of a single nozzle, reducing the problem of uneven spraying of the spray structure, and improving the desulfurization effect.

[0024] See also Figure 3 As shown, in a specific embodiment, four communication holes 21 are evenly distributed along the circumferential direction on the side wall of the water inlet branch pipe 2 for communicating with the water guide pipe 5. The water guide pipe 5 is symmetrically provided with two pieces around the rotating support frame 3. Specifically, the central angle of the communication hole 21 is 50-70 degrees, and the arc length of the communication hole 21 is greater than the aperture of the water guide pipe 5.

[0025] See also Figure 3As shown, the angle between the outlet of the second nozzle 7 and the radius of the circle where the spray pipe 4 is located is 20°-60°. The purpose is to provide a rotational driving force to the rotating support frame 3 through the tangential component of the desulfurizer spraying, so that the spray pipe 4 can rotate around the water inlet branch pipe 2.

[0026] In order to improve the uniformity of spraying and the stability of the overall structure, the first nozzles 6 are evenly spaced along the circumference of the spray pipe 4. The first nozzles 6 are spaced horizontally along the water conduit 5.

[0027] See also Figure 2 and Figure 3 As shown, specifically, in order to prevent water leakage from the bottom, a plug 8 is provided at the bottom of the water inlet branch pipe 2. In order to reduce the residue of the desulfurizer in the pipeline, the rotating support frame 3 is arranged at the lower part of the water inlet branch pipe 2.

[0028] See also Figure 1 As shown, preferably, a plurality of the rotary spraying assemblies are arranged at intervals along the water inlet main pipe 1, in order to improve the spraying efficiency.

[0029] The above is a preferred embodiment of the present invention, but the present invention is not limited to the above embodiments and examples. Various changes, equivalent substitutions, improvements, etc. made within the knowledge scope of those skilled in the art without departing from the concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A desulfurization tower spray structure, comprising a water inlet main pipe (1) and a water inlet branch pipe (2), characterized in that: The water inlet branch pipe is provided with a rotary spray assembly; The rotary spray assembly comprises a coaxially arranged rotary support frame (3) and a spray pipe (4); the rotary support frame (3) is rotatably sleeved outside the water inlet branch pipe (2) and is connected to the water inlet branch pipe (2); the spray pipe (4) is connected to the rotary support frame (3) through a water guide pipe (5); the spray pipe (4) is an annular pipe, and the water guide pipe (5) is a horizontal pipe arranged along the radius of the spray pipe (4); a plurality of first nozzles (6) with outlets facing downward are arranged at the bottom of the spray pipe (4) and the water guide pipe (5); an odd number of second nozzles (7) are evenly distributed on the outer circumference of the spray pipe (4), and the outlets thereof are arranged at an acute angle to the radial direction of the ring where the spray pipe (4) is located.

2. The spray structure according to claim 1, characterized in that: A plurality of communication holes (21) are evenly distributed along the circumferential direction on the side wall of the water inlet branch pipe (2) for communicating with the water guide pipe (5).

3. The spray structure according to claim 2, characterized in that: The water guide pipe (5) is symmetrically arranged in two pieces with the rotating support frame (3) as the center.

4. The spray structure according to claim 3, characterized in that: The angle between the outlet of the second nozzle (7) and the radius direction of the ring where the spray pipe (4) is located is 20°-60°.

5. The spray structure according to claim 4, characterized in that: The first nozzles (6) are evenly spaced and arranged along the circumference of the spray pipe (4).

6. The spray structure according to claim 5, characterized in that: The first nozzles (6) are arranged horizontally at intervals along the water conduit (5).

7. The spray structure according to any one of claims 1 to 6, characterized in that: A plug (8) is provided at the bottom of the water inlet branch pipe (2).

8. The spray structure according to claim 7, characterized in that: The rotating support frame (3) is arranged at the lower part of the water inlet branch pipe (2).

9. The spray structure according to claim 8, characterized in that: A plurality of rotary spraying components are arranged at intervals along the water inlet main pipe (1).

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